Across
- 4. an inclinded plane wrapped around a cilinder
- 5. stick or beam
- 6. a think edge that pull two things apart
- 7. allows weight to be lifted with less effort
- 8. and axle a circular piece rotating on an axis
Down
- 1. a wheel and axle with a cable
- 2. a rod or beam that pivots on a fulcrum
- 3. plane a flat surface at an angle
- 4. machine any device that makes work easier